Building block toy



FIG. 1 is a perspective view of a building block toy showing my new design;

FIG. 2 is another perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left view thereof;

FIG. 6 is a right view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom plan view thereof; and,

FIG. 9 is an enlarged view thereof, shown portion 9 of FIG. 1 . 

CLAIM The ornamental design for a building block toy, as shown and described. 